Line coding errors - an AMI - B8ZS mismatch somewhere - anywhere - in the call path? See http://808hi.com/56k/coding.htm Line coding errors may be much bigger issue than some think - can also occur in telco/clec facilities between subscriber and your switch - something you have little control over! CT1 = beginning of recipe for 56k trouble get PRI if at all possible. Aloha, Richard http://808hi.com/ 56k=v.Unreliable -> -----Original Message----- -> From: owner-usr-tc@lists.xmission.com -> [mailto:owner-usr-tc@lists.xmission.com]On Behalf Of Mark Thornton -> Sent: Friday, February 04, 2000 12:19 PM -> To: usr-tc@lists.xmission.com -> Subject: (usr-tc) CT1 problem -> -> -> I am having a problem on three incoming CT1's that are -> terminated by the T1 -> card to quad modems. We are seeing "bipolar violations", "code violation -> errors", and "bursty errored seconds". The telco has looked into the hdsl -> carrier and it shows no errors. Neither does the central switch. -> They put a -> tcomm tester on the T1 to watch the data and it reported -> "secondary channel -> loss", but they are unable to determine what that means in the -> context of a -> T1. -> -> I began looking for problems when the number of people -> complaining about not -> being able to stay online jumped significantly today. They report the -> problem has been going on for the past two days. -> -> Does anyone have any thoughts on what these errors point to? The telco is -> going to replace cards in the central switch this weekend, and I'm -> considering resetting the T1 cards to see of that is it. I appreciate any -> help you can give. -> -> Mark Thornton -> San Marcos Internet, Inc. -> 512-393-5300 -> -> -> -> -> - -> To unsubscribe to usr-tc, send an email to "majordomo@xmission.com" -> with "unsubscribe usr-tc" in the body of the message. -> For information on digests or retrieving files and old messages send -> "help" to the same address. Do not use quotes in your message. -> - To unsubscribe to usr-tc, send an email to "majordomo@xmission.com" with "unsubscribe usr-tc" in the body of the message. For information on digests or retrieving files and old messages send "help" to the same address. Do not use quotes in your message.